Fujitsu M10 Installation Manual page 195

b. When using an expansion rack, open the rear door of the rack and push in all
the CB switches on the PDU.
When pushed in, a CB switch is turned on. When pulled up, the switch is
turned off.
A in Figure 3-3
power feed. B in the figure indicates the locations of the CB switches for
three-phase power feed. A PDU has 12 CB switches, so there are 24 switches
per rack.
4.
Check the XSCF unit LEDs.
a. The CHECK LED of the XSCF unit goes on for an instant immediately after
the input power is turned on.
b. The READY LED of the XSCF unit flashes during XSCF initialization and
stays on after the initialization completes.
c. For a building block configuration, the MASTER LED of only the XSCF unit of
the master XSCF goes on.
Note - In a building block configuration with direct connections between chassis, BB#00 is the
chassis of the master XSCF. In a building block configuration with connections through
crossbar boxes, BB#80 is the chassis of the master XSCF. If the MASTER LED of BB#00 or
BB#80 does not go on, the master chassis may have been switched. Check the MASTER LED
of the XSCF of BB#01 or BB#81. If it has been switched, connect the system management
terminal to the chassis whose MASTER LED is on.
Figure 6-4 Rear of the SPARC M10-1
indicates the locations of the CB switches for single-phase
Chapter 6 Performing an Initial System Diagnosis 181